210920980

素因数分解:

$2^2\times 5^1\times {\mathrm{1229}}^1\times {\mathrm{8581}}^1$

素因数の和:9819

約数の個数: 24

約数和(自身を含む): 443346120

約数和(自身を除く): 232425140

約数列:

[1, 2, 4, 5, 10, 20, 1229, 2458, 4916, 6145, 8581, 12290, 17162, 24580, 34324, 42905, 85810, 171620, 10546049, 21092098, 42184196, 52730245, 105460490, 210920980]

約数ペア:

[(1, 210920980), (2, 105460490), (4, 52730245), (5, 42184196), (10, 21092098), (20, 10546049), (1229, 171620), (2458, 85810), (4916, 42905), (6145, 34324), (8581, 24580), (12290, 17162)]